Nested EXTJS 4 Grids

Nested EXTJS 4 Grids

Hi All,
I am new to ExtJS.
I need to put a Grid inside every row of another grid.
I went through the Grid Plug in example on sencha. But i am only able to put in the text inside rowBodyTpl.
I already have tried example at the following link.http://mikhailstadnik.com/ext/examples/nested-grid.htm
but it gives an error that i am trying to add a null child to the container Id blah blah.

Attempting this...event handler function never reached

Attempting this...event handler function never reached

Hi, I'm evaluating EXTJS 4 as a possible toolkit for adoption by our team and am trying to get a nested grid working as this functionality is a requirement for our framework.

After adding rowexpander to my grid and attempting this grid creation in the expandbody event as shown here, my expandbody handler code doesn't even seem to be getting invoked. Am I missing something? I've tried binding the event to the method in various ways and it isn't getting hit.

Can you elaborate on what otherwise sounds like a pretty simple statement:

I didn't really expect the nesting to work on this first attempt the way I half-understand everything and am hacking through this (attempting recursive addition of record being expanded), but at least need to get the event firing so that I can properly provide the object to the newly created grid.